My mother recently sent me an email from a friend who was being challenged by an Evangelical to re-consider her Catholicism. He claimed the Catholic Church had perniciously omitted what he referred to as the second commandment—“You shall not make for yourself a graven image, or any likeness of anything that is in heaven above, or that is in the earth beneath, or that is in the water under the earth” (Exodus 20:4)—in order to keep the Catholic faithful in darkness as to the truth...